Veteran Cuban boxers' knockout nostalgia

Training in the Havana heat, veteran boxer Jorge Hernandez teaches his teenage fighters to hit hard, with the knuckles, the way he used to. When he was a Cuban champion in the 1970s, Hernandez fought for knockouts -- or at least for a stoppage in his favor, he says. Since then, he complains, boxing -- Cuba's top Olympic sport -- has gone downhill.